/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.alibaba.citrus.maven.eclipse.base.eclipse.writers.wtp;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;

import com.alibaba.citrus.maven.eclipse.base.eclipse.Constants;
import com.alibaba.citrus.maven.eclipse.base.eclipse.EclipseSourceDir;
import com.alibaba.citrus.maven.eclipse.base.eclipse.Messages;
import com.alibaba.citrus.maven.eclipse.base.ide.IdeUtils;
import com.alibaba.citrus.maven.eclipse.base.ide.JeeUtils;
import org.apache.maven.plugin.MojoExecutionException;
import org.codehaus.plexus.util.IOUtil;
import org.codehaus.plexus.util.xml.PrettyPrintXMLWriter;
import org.codehaus.plexus.util.xml.XMLWriter;

/**
 * Writes eclipse .wtpmodules file.
 *
 * @author <a href="mailto:fgiust@users.sourceforge.net">Fabrizio Giustina</a>
 * @version $Id: EclipseWtpmodulesWriter.java 1152335 2011-07-29 18:40:03Z rfscholte $
 */
public class EclipseWtpmodulesWriter
        extends AbstractWtpResourceWriter {

    protected static final String FILE_DOT_WTPMODULES = ".wtpmodules"; //$NON-NLS-1$

    /** @see com.alibaba.citrus.maven.eclipse.base.eclipse.writers.EclipseWriter#write() */
    public void write()
            throws MojoExecutionException {
        Writer w;

        try {
            w =
                    new OutputStreamWriter(new FileOutputStream(new File(config.getEclipseProjectDirectory(),
                                                                         FILE_DOT_WTPMODULES)), "UTF-8");
        } catch (IOException ex) {
            throw new MojoExecutionException(Messages.getString("EclipsePlugin.erroropeningfile"), ex); //$NON-NLS-1$
        }

        XMLWriter writer = new PrettyPrintXMLWriter(w, "UTF-8", null);
        writer.startElement(ELT_PROJECT_MODULES);
        writer.addAttribute(ATTR_MODULE_ID, "moduleCoreId"); //$NON-NLS-1$

        writer.startElement(ELT_WB_MODULE);
        // we should use the configured eclipse project name.
        writer.addAttribute(ATTR_DEPLOY_NAME, this.config.getEclipseProjectName());

        writer.startElement(ELT_MODULE_TYPE);
        writeModuleTypeAccordingToPackaging(config.getProject(), writer, config.getBuildOutputDirectory());
        writer.endElement(); // module-type

        // source and resource paths.
        // deploy-path is "/" for utility and ejb projects, "/WEB-INF/classes" for webapps

        String target = "/"; //$NON-NLS-1$
        if (Constants.PROJECT_PACKAGING_WAR.equals(config.getPackaging())) //$NON-NLS-1$
        {
            String warSourceDirectory =
                    IdeUtils.getPluginSetting(config.getProject(), JeeUtils.ARTIFACT_MAVEN_WAR_PLUGIN,
                                              "warSourceDirectory", //$NON-NLS-1$
                                              config.getProject().getBasedir() + "/src/main/webapp"); //$NON-NLS-1$

            writer.startElement(ELT_WB_RESOURCE);
            writer.addAttribute(ATTR_DEPLOY_PATH, "/"); //$NON-NLS-1$
            writer.addAttribute(ATTR_SOURCE_PATH, "/" //$NON-NLS-1$
                                                  + IdeUtils.toRelativeAndFixSeparator(config.getEclipseProjectDirectory(),
                                                                                       new File(warSourceDirectory),
                                                                                       false));
            writer.endElement();

            writeWarOrEarResources(writer, config.getProject(), config.getLocalRepository());

            target = "/WEB-INF/classes"; //$NON-NLS-1$
        } else if (Constants.PROJECT_PACKAGING_EAR.equals(config.getPackaging())) //$NON-NLS-1$
        {
            writer.startElement(ELT_WB_RESOURCE);
            writer.addAttribute(ATTR_DEPLOY_PATH, "/"); //$NON-NLS-1$
            writer.addAttribute(ATTR_SOURCE_PATH, "/"); //$NON-NLS-1$
            writer.endElement();

            writeWarOrEarResources(writer, config.getProject(), config.getLocalRepository());
        }

        for (int j = 0; j < config.getSourceDirs().length; j++) {
            EclipseSourceDir dir = config.getSourceDirs()[j];
            // test src/resources are not added to wtpmodules
            if (!dir.isTest()) {
                // <wb-resource deploy-path="/" source-path="/src/java" />
                writer.startElement(ELT_WB_RESOURCE);
                writer.addAttribute(ATTR_DEPLOY_PATH, target);
                writer.addAttribute(ATTR_SOURCE_PATH, dir.getPath());
                writer.endElement();
            }
        }

        writer.endElement(); // wb-module
        writer.endElement(); // project-modules

        IOUtil.close(w);
    }
}
